Masonry chimney adapter



FIG. 1 is a perspective view of a masonry chimney adapter showing our design, with the broken lines being for illustrative purposes only and representing associated generic structure, and forming no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof, the opposite side being a mirror image of that shown;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a masonry chimney adapter, as shown and described. 